[Piglit] [PATCH 1/2] gles3: Test TEXTURE_IMMUTABLE_LEVELS parameter.

[Matt Turner]

---
 tests/spec/gles-3.0/CMakeLists.gles3.txt       |   1 +
 tests/spec/gles-3.0/texture-immutable-levels.c | 106 +++++++++++++++++++++++++
 2 files changed, 107 insertions(+)
 create mode 100644 tests/spec/gles-3.0/texture-immutable-levels.c

diff --git a/tests/spec/gles-3.0/CMakeLists.gles3.txt b/tests/spec/gles-3.0/CMakeLists.gles3.txt
index 13cef0c..38efbed 100644
--- a/tests/spec/gles-3.0/CMakeLists.gles3.txt
+++ b/tests/spec/gles-3.0/CMakeLists.gles3.txt
@@ -4,5 +4,6 @@ link_libraries(
 
 piglit_add_executable(minmax_${piglit_target_api} minmax.c)
 piglit_add_executable(oes_compressed_etc2_texture-miptree_gles3 oes_compressed_etc2_texture-miptree.c)
+piglit_add_executable(texture-immutable-levels_gles3 texture-immutable-levels.c)
 
 # vim: ft=cmake:
diff --git a/tests/spec/gles-3.0/texture-immutable-levels.c b/tests/spec/gles-3.0/texture-immutable-levels.c
new file mode 100644
index 0000000..ac86c1f
--- /dev/null
+++ b/tests/spec/gles-3.0/texture-immutable-levels.c
@@ -0,0 +1,106 @@
+/* Copyright © 2013 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NON-INFRINGEMENT.  IN NO EVENT SHALL VMWARE AND/OR THEIR SUPPLIERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+/**
+ * Tests the TEXTURE_IMMUTABLE_LEVELS parameter.
+ *
+ * The GL ES 3.0 spec says:
+ *
+ *     "If the command is successful, TEXTURE_IMMUTABLE_FORMAT becomes
+ *      TRUE and TEXTURE_IMMUTABLE_LEVELS becomes levels."
+ *
+ * where <command> is either glTexStorage2D or glTexStorage3D.
+ *
+ * Test by calling glTexStorage*D with <levels> = 3, <width>, <height>, and
+ * <depth> = 32; and then confirming that TEXTURE_IMMUTABLE_LEVELS was
+ * correctly set to <levels>.
+ */
+
+#include "piglit-util-gl-common.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+
+	config.supports_gl_es_version = 30;
+
+PIGLIT_GL_TEST_CONFIG_END
+
+enum piglit_result
+piglit_display(void)
+{
+	static const GLfloat data[32][32];
+	GLuint tex[3];
+	GLint level;
+
+	/* The GL ES 3.0 spec says:
+	 *
+	 *     "The [initial] value of TEXTURE_IMMUTABLE_LEVELS is 0."
+	 */
+	glGetTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_IMMUTABLE_LEVELS, &level);
+	if (!piglit_check_gl_error(GL_NO_ERROR)) {
+		piglit_report_result(PIGLIT_FAIL);
+	}
+	if (level != 0) {
+		printf("Expected 0 levels initially, but glGetTexParameteriv "
+		       "returned %d for GL_TEXTURE_1D.\n", level);
+		piglit_report_result(PIGLIT_FAIL);
+	}
+
+	glGenTextures(3, tex);
+
+	glBindTexture(GL_TEXTURE_2D, tex[0]);
+	glTexStorage2D(GL_TEXTURE_2D, 3, GL_RGBA8, 32, 32);
+	glGetTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_IMMUTABLE_LEVELS, &level);
+	if (level != 3) {
+		printf("Expected 3 levels, but glGetTexParameteriv returned "
+		       "%d for GL_TEXTURE_2D.\n", level);
+		piglit_report_result(PIGLIT_FAIL);
+	}
+
+	glBindTexture(GL_TEXTURE_3D, tex[1]);
+	glTexStorage3D(GL_TEXTURE_3D, 3, GL_RGBA8, 32, 32, 32);
+	glGetTexParameteriv(GL_TEXTURE_3D, GL_TEXTURE_IMMUTABLE_LEVELS, &level);
+	if (level != 3) {
+		printf("Expected 3 levels, but glGetTexParameterfv returned "
+		       "%d for GL_TEXTURE_3D.\n", level);
+		piglit_report_result(PIGLIT_FAIL);
+	}
+
+	glBindTexture(GL_TEXTURE_2D, tex[2]);
+	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 32, 32, 0, GL_RGBA, GL_FLOAT, (const GLvoid *) data);
+	glGetTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_IMMUTABLE_LEVELS, &level);
+	if (level != 0) {
+		printf("Expected 0 levels, but glGetTexParameteriv returned "
+		       "%d for GL_TEXTURE_2D.\n", level);
+		piglit_report_result(PIGLIT_FAIL);
+	}
+
+	glDeleteTextures(3, tex);
+
+	piglit_report_result(PIGLIT_PASS);
+	return 0;
+}
+
+void
+piglit_init(int argc, char *argv[])
+{
+}
-- 
1.8.1.5